For comparison, in addition to RGRK and RGRCD, we also test several effective row and column iterative methods, such as the GBK method [1]}, the randomized block Kaczmarz method (RBK) [2]}, the randomized block CD (RBCD) method [3]}, and the accelerated max-distance CD (AMDCD) method [4]}. These methods are briefly described below.
